Reinforcing-plate.



E. C. STROEBE.

BEINFORCINGPLATE.

APPLICATION FllLED uNE13. me.

1 ,287,507. 'l I Patented Dec. 10,v 1918.

2 SHEETS-SHEET l.

auvent@ E. C. STROEBE.

REINFoncING PLATE.

APPLICATION FILED JUNE 132 I9I6. I

1,287,507. Patented-Dec. 10, 1918,

2 SHEETS-SHEET 2.*

I'naITED STATES PATENT OFFICE.

ERNEST C. STROEBE, OF CANTON, OHIO, ASSIGNOR T0 THE BERGER MANUFACTURING COMPANY, OF CANTON, OHIO, .Av CORPORATION OF OHIO.

l REINFORCING-PLATE.

Specification of Letters'Patent. Patented Dec, 10, 1918,

Application led J une 13, 1916. Serial No. 103,397,

To all whom t may concern.'

. Be it known that I, ERNEST C. STROEBE, a citizen .of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Reinforcing-Plate, of which the following is a specification. y,

My invention relates to improvements in reinforcing plates for concrete structures and the like and especially to such platesv formed from sheet metal.

The objects of the invention are to generally improve reinforcing plates of the character described, to so construct the plate as to produce a large amount of finished product from a given quantity of sheet metal, to so form and dispose the parts of the plate as to obtain a very high degree of efficiency by properly distributing strains, locating the stronger parts where the greatest strains occur, and rendering possible the perfect embedding of the plate by forming the same with uniform and Well distributed openings.

Further objects are, to so form the plate that it may be readily nested for storage and shipment and will not be easily injured in handling, the various parts serving to brace each other as well before being embedded as in the finished concrete or other structure.

These objects, together with other objects readily apparent to those skilled in the art may be attained by the construction illustrated in the accompanying drawings, although the invention may be embodied in other forms, the construction illustrated being chosen by way of example.

ln the drawings:

Figure 1 is a plan. view of a portion of a sheet of metal illustrating how the blank is slit or cut to form the finished reinforcing plate.

Fig. 2 is a perspective view of a portion of a reinforcing plate embodying the invention.

Fig. 3 is a perspective view of a portion of a modified form.

Fig. l is a side view of that form illustrated in Fig. 2.

Fig. 5 is an end view of the same.

6 is an end view of three plates of the same form nested for shipment.

Fig. 7 is an end view of a plate embodying a .second modification.

Fig. 8 is an end Vie'.J of a third modification.

Fig. 9 is. an end view of that modified form of plate illustrated in Fig. 3.

Throughout the several views similar ref'- erence numerals indicate similar parts.

More specifically describing the construction illustrated in said drawings, attention is first called more particularly to the blank illustrated in Fig. 1 in which the numeral 1 indicates a sheet of metal in which are arranged the slits 2 and 3, the slits 2 and the slits 3 being of equal length and the slits 2 being arranged in a plurality of parallel spaced lines, the ends of adjacent slits 2 in each line being spaced from each other as at 4. The slits 3 are arranged similarly to the slits 2, there being a line of slits 3 adjacent eacli line of slits 2 and the spaced ends of adjacent slits 3, as at the points 5, being arranged substantially intermediate the points 4.

In this way the chords 6 and 7 are separated by the comparatively narrow ribs 8 between the slits 2 and 3, the said ribs 8 being connected to the adjacent chords by the integral staggered connecting portions i and 5 heretofore mentioned.

In forming the reinforcing plate from the slitted b ank, as described, the chords 6 are brought into a common plane laterally spaced from the chords 7, which chords are likewise in a common plane. The ribs S. being connectedmb)v the integral portions at 4 and 5 as described, are bent diagonally and somewhat stretched producing triangular openings. 9 between said ribs and the chords 6 and similar openings 10 between said ribs and the chords 7.

If' desired the chords 6 and 7 may be provided along their edges with 'the integral marginal iianges 11 and l2, which are preferably disposed in inclined planes in which i with llig. 'i' may ounded position as illustrated at l5 in lFig. rather ythan a' line oir incre abrupt bending as illustratedin Fig. 2.

either torni yof the plate as described, however it will be found that a plurality of completely formed plates will be very readily nested after the manner illustrated in 6, thus ma'kinof it possible to store and ship large quantities of the plate in comparatively; sniall space.

Fig.. t is ct' especial interest as illustrating the staggered relation of the connecting portions a and 5, thereby producing a structure in 'which the strains are more thoroughly distributed and the efficiency oit the plate is increased by reason of the bracing and bridging eiects of the ribs 8 in their peculiarrelatlon to each other and to the chords l Fig. 5 is of interest in that it more i'ully illustrates how the ribs 8 lie in the same inclinedplanes as the danges 1l and l2 to `which they are connected. The late when so formed is capable of supporting plastic con-crete in a very satisactorl way even when the ribs 8 are considera ly inclined tor 'the reason that the dat sides of said ribs engage said concrete.

'the modification illustrated in Fig. 7 "the chords 6 and 7 correspond to the chords t and 'l .oi the preferred term of construction hereinbeiore described and the ribs 8b are arranged in the inclined position so the linished plate made in accordance be very readily nested and is strong and substantial.

in the inodication illustrated in Fig. 3 the ribs 8 are not inclined in the saine inanner as the ribs 8 and 8 and from aminspec tion oi Fig.' 9 illustrating the same forni it will be noted that the iinished product will be substantially .ci the same projection vas sheet metal blank trom which it is the edges ci the chords 6a and '7 sing laterally separated from each other so that the iinished product will be substantially ot the same projection crosswise' the sheet, as the sheet metal blank from which it is formed, the edges of the chords 6 and 7E being laterally separated from each other by only the thickness of the ribs 8a.` The chords 6a and 7 may he provided with the beads iai either extending in the saine direcnon as illustrated in Figs. 3 and 9 .or in the opposite direction in a manner correspondingtc the opposite disposition of the beads i3 in Fig. 7. v

Attention is also called to Fig. 8 wherein the chords 6 and 7 are arranged in stepped relationship, the chords 6 lvin in dierent planes and the chords 7 also ying in diierent' planes.. The ribs 8 and the danges llc and l2 however are provided, either as shown oras in Fig.. 3, the two flanges at the opposite sides ci each chordextending, in

rasato? opposite directions. rlihis torni ci reinforcing plate is especially valuable on roofs or other inclined work where it is desired to maintain the chords in substantially lhorizontal positions to support the plastic concrete.

lt will be iinderstood that reinforcing plates embodying my invention may be used for a variety of purposes, especially'in the construction of building and the like. yThe Aplate may be used in vertical horizontal or inclined position may be inade of various dirnens1ons, from a` comparatively narrow, elongated formiadapted to take the place of 'studding in 'lire proof constructions to a plate being utilized to support the weight of said plastic concrete, the lower chord of the plate will constitute the tension chord, while the upper chord will constitute the compression chord of the bridged construction. As -soon as the concrete slab has hardened the upper portion of the concrete slab will take up the compressive force and both upper and lower chords of the reinforcing late will act as tension members in the in1shed con crete structure.

@ne of lthe points of importance to be noted is that all ofthe forms described are made from substantially the saine blank, that is, the arrangement of the slits Zand 3 is substantially the same for all the various forms of plates, 'the 'distance between said slits, the distance between successive rows of slits and the length of the slits varying in accordance with the dimensions of the com pleted plate desired.

While l have thus described my invention with reference/to the specic forms to which attention has been called the same beingy the best forms in .which l have yet con templated embodying the invention l desire to be not limited to the details of form and construction thus disclosed for it is obvious that many changes may be made as circumstances require or experience suggests without departing from the spirit of the invenf tion within the scope of 'the appended claims. l

.l claim:

l. A reinforcing plate formed from sheet metal and comprising a series of elongated chords alternate chords'lying in the same plane, an integral Hangs formed upon either edge of each chord, the said flanges extending inthe direction of the next adjacent chord, ribs formed integral with the ,said flanges and chords and lying in the same plane as the said denies the said ribs conmeeting adjacent chor 2. A reinforcing plate formed from sheet metal and comprising spaced Achords lying in diil'erent planes alternate chords lying in the same plane, inwardly extending flanges formed integral with each chord at the edge thereof, ribs' formed integral with the said flanges and chords and lying in the same plane with the said flanges and connecting adjacent chords..

3. A reinforcing plate formed from a single sheet of metal comprising elongated spaced chords lying in opposite planes alternate chords lying in the saine plane, downwardly extending flanges formed integral with eachchord in one plane upwardly extending 'langes formed integral with each chord in the opposite plane, the said flanges extending toward each other and ribs formed integral with the flanges 'l `ing in the same plane and connecting ad]acent chords in opposite planes.

In testimony that I claim the above, I have hereunto subscri'bed my name.

ERNEST C. STROEBE. 

